Frederik IX was King of Denmark from 1947 to 1972.
Biography from Wikipedia, available under CC BY-SA 4.0.
Also born on March 11
- Rupert Murdoch1931 · American business magnate
- Didier Drogba1978 · Ivorian footballer
- Harold Wilson1916 · Prime Minister of the United Kingdom (1964–1970, 1974–1976)
- Qasem Soleimani1957 · Iranian military officer
- Anton Yelchin1989 · American actor
- Douglas Adams1952 · English writer and humourist
- Terrence Howard1969 · American actor
- Andy Robertson1994 · Scottish footballer
Also born in 1899
- Ernest Hemingway1899 · American author and journalist
- Alfred Hitchcock1899 · English filmmaker
- Humphrey Bogart1899 · American actor
- Al Capone1899 · American gangster and businessman
- Fred Astaire1899 · American dancer and actor
- Vladimir Nabokov1899 · Russian and American novelist
- Lavrentiy Beria1899 · Soviet secret police chief
- Jorge Luis Borges1899 · Argentine writer